Reduced the lifetime of DownloadCreateInfo.

chrome/browser/history/download_history_info.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Download struct used for informing and querying the history service.
+
+#ifndef CHROME_BROWSER_HISTORY_DOWNLOAD_HISTORY_INFO_H_
+#define CHROME_BROWSER_HISTORY_DOWNLOAD_HISTORY_INFO_H_
+#pragma once
+
+#include <vector>
+
+#include "base/file_path.h"
+#include "base/time.h"
+#include "googleurl/src/gurl.h"
+
+class DownloadItem;
+
+// Contains the information that is stored in the download history database
+// (or refers to it).  Managed by the DownloadItem.
+struct DownloadHistoryInfo {
+  // TODO(ahendrickson) -- Reduce the number of constructors.
+  DownloadHistoryInfo();
+  DownloadHistoryInfo(const std::vector<GURL>& url,
+                      const GURL& referrer,
+                      int64 total_bytes);
+  DownloadHistoryInfo(const FilePath& path,
+                      const GURL& url,
+                      const base::Time& start,
+                      int64 received,
+                      int64 total,
+                      int32 download_state);
+  DownloadHistoryInfo(const FilePath& path,
+                      const std::vector<GURL>& url,
+                      const GURL& referrer,
+                      const base::Time& start,
+                      int64 received,
+                      int64 total,
+                      int32 download_state,
+                      int64 handle,
+                      int32 id);
+
+  // The URL from which we are downloading. This is the final URL after any
+  // redirection by the server for |url_chain|.
+  const GURL& url() const;
+
+  // Download ID assigned by DownloadResourceHandler.
+  // Used by the history back end, to return in a callback.
+  int32 download_id;
+
+  // The final path where the download is saved.
+  FilePath path;
+
+  // The chain of redirects that leading up to and including the final URL.
+  std::vector<GURL> url_chain;
+
+  // The URL that referred us.
+  GURL referrer_url;
+
+  // The time when the download started.
+  base::Time start_time;
+
+  // The number of bytes received (so far).
+  int64 received_bytes;
+
+  // The total number of bytes in the download.
+  int64 total_bytes;
+
+  // The current state of the download.
+  int32 state;
+
+  // The handle of the download in the database.
+  int64 db_handle;
+};
+
+#endif  // CHROME_BROWSER_HISTORY_DOWNLOAD_HISTORY_INFO_H_